diff options
Diffstat (limited to 'tex/context/base/syst-aux.lua')
| -rw-r--r-- | tex/context/base/syst-aux.lua | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/tex/context/base/syst-aux.lua b/tex/context/base/syst-aux.lua index b5dd4e7e2..b04d11d89 100644 --- a/tex/context/base/syst-aux.lua +++ b/tex/context/base/syst-aux.lua @@ -11,11 +11,12 @@ if not modules then modules = { } end modules ['syst-aux'] = { -- utfmatch(str,"(.?)(.*)$") -- utf.sub(str,1,1) -local commands = commands +local commands, context = commands, context local settings_to_array = utilities.parsers.settings_to_array local concat = table.concat -local P, C, lpegmatch, utf8char = lpeg.P, lpeg.C, lpeg.match, lpeg.patterns.utf8char +local format = string.format +local P, C, Carg, lpegmatch, utf8char = lpeg.P, lpeg.C, lpeg.Carg, lpeg.match, lpeg.patterns.utf8char local setvalue = context.setvalue @@ -62,3 +63,14 @@ end -- end -- end -- end + +local pattern = (C((1-P("%"))^1) * Carg(1)) /function(n,d) return format("%.0fsp",d * tonumber(n)/100) end * P("%") * P(-1) + +-- commands.percentageof("10%",65536*10) + +function commands.percentageof(str,dim) + context(lpegmatch(pattern,str,1,dim) or str) +end + +-- \gdef\setpercentdimen#1#2% +-- {#1=\ctxcommand{percentageof("#2",\number#1)}\relax} |